Pro Tech Toolkit. 1558. $74.95. Replace a 15.04 Wh battery compatible with iPhone 11 Pro Max. 3.79 Volts (V). Compatible with all iPhone 11 Pro Max models. CEVA replacement Apple iPhone 11 Pro Max batteries have been tested and proven to match and/or exceed original Apple battery performance and are 10 View full details Original price £14.99 - Original price £14.99 n2Cve.